Is HARTLAND WATERWORKS's water safe to drink?

HARTLAND WATERWORKS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 9,212 people through 3,411 service connections.

Ranked against every other system in this dataset

Out of 12,903 systems in this dataset, HARTLAND WATERWORKS ranks 6,709th by violation burden (48th percentile) - 7 violations total, 2 health-baseds.

How HARTLAND WATERWORKS compares within WI

WI's 202 covered systems average 3.6 health-based violations each; HARTLAND WATERWORKS carries 2, not more than typical for the state. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

The last violation EPA has on record for HARTLAND WATERWORKS is from 2021-01-02 (health-based: 2014-01-08). Last reported to EPA: 05/29/2026.

What kind of problem, specifically

HARTLAND WATERWORKS's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:

• Microbial contamination / treatment technique - flagged from: Coliform (TCR)

The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.

What this data is and is not

This is what HARTLAND WATERWORKS reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Between the utility's meter and HARTLAND WATERWORKS's customers' taps is household plumbing, invisible to a system-level record ranked 6,709th of 12,903 by violation count. The guide to what this data misses covers that gap.